7.Some people feel easy and comfortable to be served by others but when they are asked to serve others ______, they are unwilling or even hate to do so.
| A．in turn | B．in their turns | C．in their turn | D．by their turn |
Mr. Read made up his mind to devote all he had to ___ some school for poor children.
| A．set up | B．setting up | C．have set up | D．having set up |
He failed in the exam, and I wonder ___ he studied hard in the school.
| A．when | B．that | C．if | D．where |
---I really like the record you lent me last week.
---____.
---And thank you very much for letting me keep it so long.
| A．I’m glad you like it | B．That’s all right | C．Don’t mention it | D．I hope you like it |
There fell a heavy snow last December, and this year ___ a good harvest.
| A．proves | B．means | C．allows | D．promises |
The boy dived into the water and after ___ seemed to be a long time, he came up again.
| A．what | B．that | C．it | D．which |